Three teenagers have been jailed for five years and eight months each after a ‘totally unprovoked’ gang attack on a 15-year-old boy in Dalston.

The trio of two 15-year-olds and a 17-year-old knocked him off his bike and punched him repeatedly.

The older teen stabbed him once in the chest as his friends yelled “kill him”.

The three then made off with his bike.

The victim collapsed at the scene and was taken to the Royal London Hospital.

The defendants were charged with attempted murder, with a plea to GBH later accepted by the prosecution. Charges against a 17-year-old girl of assisting an offender were discontinued at court.

They were sentenced at Snaresbrook Crown Court yesterday. The conviction came despite the 17-year-old boy destroying vital evidence, such the distinctive clothing he wore during the attack and incriminating calls and text messages, in a bit to hamper the investigation.

Detective Constable Marcus Snook, of the Trident Gangs Command, said: “The victim by his own admission had previously been involved in gangs and the defendants, from an opposing group, took their chance to launch a totally unprovoked attack in the middle of the shopping centre on a busy Saturday afternoon.

A 'jealous' murderer from Huddersfield who killed a suspected love rival in a ‘brutal’ and ‘bestial’ attack has lost an appeal bid to get his jail term slashed.

Robert Anthony Lyn, 46, ‘butchered’ Daniel Campbell, 38, with a kitchen knife after seeing a Facebook rumour that he had slept with his girlfriend, Stephanie Slade.

Lyn, of Huntingdon Avenue, Bradley, saw the Facebook post on his way home from work on July 18 last year. He proceeded to get drunk on brandy and bought a set of three knives, Lady Justice Sharp told London’s Appeal Court.

He headed to Mr Campbell’s flat in Elland with the largest of the blades.

Lyn picked up a concrete planter and broke down the door of the Elizabeth Street property. Mr Campbell was asleep in bed on his back when he was attacked and had ‘no opportunity’ to defend himself, said Lady Justice Sharp.